I installed black "rimblades" on all my rims today since I already got a very minor scratch on my left rear rim last week. I guess I was not used to the length of the car yet. Now they should be protected.

Installation was easy - I just hope they stay on when driving at higher speeds on the Autobahn.

Update March 2016: I have now driven over 20'000 kms with rimblades on both sets of tires and so far none have fallen off. They seem to still be attached really well. Over all a great product !